From owner-freebsd-security@FreeBSD.ORG Thu Sep 23 04:49:57 2004 Return-Path: Delivered-To: freebsd-security@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 25EFE16A4CE for ; Thu, 23 Sep 2004 04:49:57 +0000 (GMT) Received: from cleaton.net (cleaton.net [82.138.248.193]) by mx1.FreeBSD.org (Postfix) with SMTP id 5435043D2F for ; Thu, 23 Sep 2004 04:49:56 +0000 (GMT) (envelope-from nick@cleaton.net) Received: (qmail 78384 invoked by uid 0); 23 Sep 2004 04:49:54 -0000 Received: from cleaton.net (HELO lt4.cleaton.net) (82.138.248.193) by cleaton.net with SMTP; 23 Sep 2004 04:49:54 -0000 Received: from nick by lt4.cleaton.net with local (Exim 4.30) id 1CALao-0000Oj-FA for freebsd-security@freebsd.org; Thu, 23 Sep 2004 06:52:30 +0200 Date: Thu, 23 Sep 2004 06:52:29 +0200 From: Nick Cleaton To: freebsd-security@freebsd.org Message-ID: <20040923045229.GJ5340@lt1.cleaton.net> References: <414C2798.7060509@withagen.nl> <6917b781040918103077c76f0c@mail.gmail.com> <414CAC56.8020601@withagen.nl> <6917b781040918150446b7dada@mail.gmail.com> <414CB5EF.7080901@withagen.nl> <20040918222819.GG20449@pir.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040918222819.GG20449@pir.net> User-Agent: Mutt/1.3.28i Subject: Re: Attacks on ssh port X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Security issues [members-only posting] List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Sep 2004 04:49:57 -0000 On Sat, Sep 18, 2004 at 06:28:19PM -0400, Peter Radcliffe wrote: > > Personally I only allow ssh from known legitimate sources and block the > rest so the "noise" is in a completely different list. > I want access to my system from any IP address, so I've patched my sshd so that a secret token is required to connect. Kinda like using an obscure port, only more so :) http://nick.cleaton.net/openssh-3.8p1-cc-0.03.patch Nick -- $_='YN8KuE*** http://www.exonetric.com/ Telehouse UK colo ***HARQr**' .'NfzV0YrC1*** GBP40/month +VAT 40G BW no setup fee ***MnjJ**' .'6QvtcPgQ20*** ***nlS**' ;s/(.)(.*(.))/$2.chr(32+(ord($1)+ord$3)%89)/euntil/Foo/;eval#****'